The subpoenas were issued by an anti-corruption commission formed in July by Gov. Andrew Cuomo after the administration failed to strike a deal with lawmakers on a package of anti-corruption legislation.

Two of the biggest names in New York live entertainment, the Barclays Center and Madison Square Garden, are vying for the right to redevelop the 41-year-old Coliseum into a year-round destination with more than 300 events.

On Friday, State Comptroller Tom DiNapolir will announce his support for Manhattan Borough President Scott Stringer, who is the only candidate running for city comptroller this year. Mr. Stringer has been endorsed by practically every politically relevant official and group to date.